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Home >> Lincoln >> 1998 >> Mark VIII Base >> Repair and Diagnosis >> Steering >> Electronic Steering >> Description & Operation >> Electronic Variable Orifice System (EVO) >> Control Module
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Control Module

The control module contains a microprocessor which analyzes the Vehicle Speed Sensor (VSS) input and the electronic steering sensor input continuously. See Figure . With this information, the microprocessor controls the EVO power steering control valve actuator, thereby regulating the fluid flow from the power steering pump.